Stove



F. A. NlEBERDlNG.

STOVE.

APPLICATION HLEDMARJG, 1917.

1,370,704. Patented Mar. 8, 1921.

2 SHEETS-SHEET l.

F. A. NIEBERDING.

STOV.

APPLICATION FILED MAR. ze, IQII.

1,370,704. Paten'd Mar. 8, 1921.

2 SHEETS-SHEET 2.

PATENT OFFECE.

FRANK A. NIEBERDING, OF CLEVELAND, OHIO.

STOVE.

Specicaton of Letters Patent.

Patented Mar. 8, 1921.

Application led March 26, 1917. Serial No. 157,345.

To all whom it may concern.'

Be it known that l, F RANK A. NIEBERDING, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Stoves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to improvements in gas heating stoves, especially to the sort wherein artiiicial fuel is employed, and more particularly to the open front type.

The invention has for its main object the production of stove of the above character wherein the maximum of eiiiciency is obtained from the products of combustion and vet wherein such products are thoroughly disposed of through the flue, expelling into the room only pure, warm arm.

My invention contemplates the use of long slender radiants. and which, as is well known to those familiar with this class of heaters, are very fragile. A further and important object of the invention is to provide a novel construction wherein these radiants are permitted to repose in an inclined positionwithout the need of additional holding means, allowing the use of fractured or even broken radiante, when the break or injury is not too serious. Following from this l,arrangen'ient is further object of providing a construction which encourages and, under normal conditions, compels the products of combustion to fol'- low the inclination of the radiants to the exhaust flue above, and further provides for the inclusion of means for recovering any productsY which might he diverted from the normal course, through some external cause, and leading them dually to the exhaust flue. p

A further and morege'neral object' ofthe invention is to combine the advantages of heat reflection andI heat radiation in one structure to the attainmentl of the highest efficiency, and then again, more limitedly, to provide a construction which is compara'- tively simple and inexpensive of manufacture and through which'this'and the preceding objects are attained Such a construction is illustrated in the accompanying drawings wherein Figure 11 is a front elevation of a gas heating stove constructed in accordance with my invention, portions of the :frontv being brokenI away to revealv cer H tain details; Fig. 2 is a front-torear central vertical section through the stove; Fig. 3 is a horizontal section on the line 3-3 of Fig. 2, looking downward; and Fig. 4 is a section on the line 4 4 of Fig. 2, looking in the direction of the arrows. I

The casing of the stove is preferably formed of sheet metal and is shown as comprising a top l, side walls 2, baclr wall 3, and bottom plate 4. The front edges of the top and side walls are connected to a flange which extends rearward from a front frame 6, the frame herein being shown as extending across the vupper portion of the front of' the casing where it is provided with openings 7, and down reach sidefof the casing to and across the bottom, the bottom portion having an opening 8v for the admission of fresh air to the casing. The front frame 6 may be formed of sheet or cast metal, and between its upper and lower portions, having respectively the openings 7 and 8, is located the main opening; A hood 10`projccts through the upper portion of the main openingof the frame and may be held in place by having its flange l1, which extends across the top and down the sides of the hood, attached to the adjacent portion ofthe frame. l Y

Inclined upward from the bottom of the front frame. iust/ above its opening 8, is a plate 15 which, as will be seen clearly from Figs. 1 and 3, is corrugated to producev vertical troughs 16, the ends of the plate being 'flanged downward for connection with the side walls 2, That portion of the casing to the front cf the plate 15, may be considered the combustion space, and it is closed at its upper end, except for a flue passage that will: be presently pointed out, by a plate 18 which is flanged upward'at its ends for con'- nection withthe end walls 2, and has its rear end turned downward behind for connection with the upper edge of the plate 15,

while its'forward endl is shown as contacting,r with the hood? 10. o

A heat reflector 2()7 in the form of a plate, has its ends flanged upward and connected to the end walls, similarly to the previously described plates; and is 'spaced' asufficient distance loelowy the plate 18 to provide between the two plates an ample passage-way for the products of combustion from the combustion space below. As to the shape of the plate', it will? he observed thatl its for# front frame at the top of the 'radiating sur-face, so

ward portion is located well above the lower edge of the hood' 10 whilevthe remainder of the plate is inclined downwardly from such portion tward the plate where its eXtreme rear edge is turned downward and vthen backward and upward quite near the upper end of the plate 15. Each end of the horizontal portion of the plate 20, is provided with openings 2l, as shown particularly in Fig. 1.

The plate 18 has an opening through which a collar 24 is shown as projecting, to provide an outlet lor the combustion space; and an outlet pipe 25 projects through an opening in the upper end of the back wall 3 'For connection with a flue. A radiator 26, which consists of a series of hollow rectanguiar casings, is interposed between the outlet pipe 25 and the collar 211 and the combustion space has communication with the flue through this'radiator, the collar aforesaid pipe 25. The two central casings of the radiator are communicatively connected at about their longitudinal center through a pipe Section 27, and the central portion of each end casing has a tubular extension, one iorconnection with the collar 2li and the other with the outlet pipe 25. Each end of each of the end casings oi the radiator has communication with the adjacent end or the adjoining` easing through a pipe section 29. Thus it will be seen that a tortuous course is provided tor the products or' combustion 'from the combustion space to the flue, and during their travel the products are compelled to contact with considerable that practically their 'full heating value is abstracted before they reach the Hue, and inthe event that their tree passage through the radiator should be too rapid to assure such efficiency, t reir velocity may be retarded by a damper which is supported within the pipe 25 upon and tired to a shatBl, the upper end whereof is 'formed into a crank 82 for connection with and operation by a rod 33, the forward end or which projects through an opening in the i'ront trame 6 and i's there equipped with a knob 311. Excessive movement of the rod in a forward direction is prevented by a stop 35, shown as consisting of a cotter pin extending through an aperture in the rod the movement being so limited as to prevent the crank from assuming a vdead center position.` The damper is shown as provided' with a. central Aopening Jfor the purpose of safety, to avoid a complete closure of the outlet. Y u

A battery of burners 40, preferably of the Bunsen type, are communicatively connected toa manifold 41, which is supported, at its ends, in brackets 42, from the adjacent bottom portion of the front trame 6. YIt will be seen from Fig. 1 that a burner 40 is provided for each of the troughs 16 of the plate substantially horizontal and 24, and thev 15 and reclining within each trough above the burner is a radiant L15, the same being shown as supported at its lower end by a lug i6 which projects trom the bottom ot the` trough in proximity to the end of the burner. rEhe radiants i5 are hollow and their walls are of skeleton formation to periiit of a thorough circulation of the products oit' combustion about every portion of the respective elements.

Y ,er suitable fender is arranged to stand in 'iront oi the lower end oi the casing and conceal'the burners and manifold, the rear edge of the top of t ie Jrender reposing in juxtaposition to the lower ends ot the radiants.y The Jfront of the tender has air admitting openings 51, and at about its center, is provided with a key receiving socket 52 for the reception oi the shanlr of the lrey 53 which is adapted to be applied to the outer end of a rod 5% that extends tirough the wall or' the :tender into the hey socket 52. 'the inner end of the rod having connection with suitable valve 55 that may constitute a part of the burner structure.

ein ornamental post 58 rises 'from the rear or each side of Vthe tender and embraces the corner of the frame, 6 and near its upper end has connected to it rai? which entends across vthe iront of the heater in a position to answer asa Jfoot rest, if desired.

When the burners are lighted, the products or combustion travel upward through and about the radiante and are discharged into the space above the plate 20 trom which they escape through the radiator 26 into the due, via the'course previously described in detail. Fluo conditions beingl proper, the drait of the yiue even with the safety damper 30 closed is sufficient to draw the products upward to the rear the plate 20, and it is only under abnormal conditions, as when a draft is created in front of the heater from external cause, resulting in an eddy oif air being produced within the combustion space, that any or". the products o combustion are drawn forward of the plate 20. Y However, when the products are so diverted, they pass upward in -iront oit said plate and are trapped beneaththe hood 10 fromwhere they escape, through the openings 21, into. the space betweenthe plates 18 and 2G, from where lthey pass out through the radiator and flue. A great percentage of the heat generated is of course thrown off through the openfront of the stove directly from the incandescent radiante, and the plate20 serves to reflect considerable of this heat downward and forward from the combustion space. It is obvious that the plate 15 becomes very hot trom its contact with the radiants, and this plate radiates into the interior of the casing a `very considerable amount of heat,as does also the the end of a guard` lil-5 late 18 and the casings of the radiator 26. lfherefore, cool, fresh air which is drawn inward through the openinos l of the fender and on through the opening 8 of the front plate into the casing is heated to a very high -degree as it passes upward in direct contact with the aforesaid plates and radiator prior to being expelled through the openings 7 of the front frame.

Thus it will be seen that advantage is taken of practically every means of obtaining the maximum amount of heat from the products of combustion before they finally reach the flue. And it will be recalled, while considering this high eliciency, that no products of combustion are permitted to escape into the room.

It is clear from the foregoing construction that the radiants are supported solely by the plate l5, making unnecessary any other means of suspension. Because of their inclination, fractured or broken or sectional radiants may be utilized, so long as the lower sections are capable of supporting the ones thereabove.

Having` thus described my invention, what I claim is:

l. In a heater of the class set combination with a casing, of a plate inclined upward and backward from the lower portion of the casing front, a second plate extending from the upper edge of the former plate forward to the front of the casing, a hood projecting forward and downward from the front of the casing and terminating below the forward edge of the second plate, a partition spaced upward from the lower edge of said hood and extending therefrom backward and downward into proximity to the upper end of the first plate, thereby to provide beneath the hood a recovery space for products that would otherwise escape, the space between said partition and the second plate having an outlet and having communication with the recovery space, and a combustion device arranged to project its products upward along the front of the first late.

2. n a heater of the class set forth, the combination with a casing, of a plate inclined upward and backward from the lower portion of the casing front, a second plate forth, the i extending from the upper edge of the former plate forward to the front of the casing, a hood projecting forward and downward from the front of the casing and terminating below the forward edge of the second plate, a. partition spaced upward from the lower edge of said hood and extending therefrom backward and downward into proximity to the upper end of the first plate, said partition having openings in the vicinity of said hood, the space between said partition and the second plate having an outlet, and a combustion device arranged to project its products upward along the front of the first late.

p 3. vIn a heater of the class set forth, the combination of a casing, a plate inclined upwardly and rearwardly from the lower front portion of the casing, said plate having radiant receiving depressions, an elongated tubular radiant resting within each depression and properly positioned thereby with respect to the other radiants and whereby it is held against lateral displacement, and a combustion device arranged in operative relation to the radiants.

4. In a heater of the class set forth, the /combination of a casing, a plate inclined upwardly and rearwardly from the front portion of the casing and corrugated to produce troughs extending from top to bottom of the plate,a lug projecting into each trough from the lower portion of the plate. an elongated radiant reposing within each trough and supported by said lug, the troughs serving to properly position the radiants with respect to each other and whereby they are held against lateral displacement, and a combustion device arranged in operative relation to the radiants.

5. In a heater of the class set forth, the combination of an open front casing, elongated radiants supported within the casing and extending upwardly and rearwardly from the lower front portion thereof, a combustion device .supported beyond the front of and entirely outside the casing in ope-rative relation to the radiantsA and a removable fender concealing said device.

In testimony whereof I hereunto aiiix my signature.

FRANK A. N IEBERDIN G. 

